Extensible table.



B. H. GARNOVSKY.

EXTBNSIBLE TABLE.

APPLICATION FILED AUG.17, 1910.

1,012,519, Patented Dec.19,1911.

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B. H. GARNOVSKY.

EXTENSIBLE TABLE.

APPLICATION FILED AUG.17, 1910.

Patented Dec. 19, 1911.

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UNITED STATES PATENT OFFICE.

BYRON H. GARNOVSKY, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TOCHARLES SCHULTE, OF DETROIT, MICHIGAN.

EXTENSIBLE TABLE.

Specification of Letters Patent.

Patented Dec. 19, 1911.

To all whom it may concern:

Be it knownthat I, BYRON ll. O ARNOV SKY, who am a subject of the Klngof Great Britain, residing at Detroit, county of Wayne, State ofMichigan, have invented a certain new and useful Improvement inExtensible Tables, and declare the following to be a full, clear, andexact description of the same, such as will enable others skilled in theart to which it pertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification.

This invention relates to extensible tables, and has for its object animproved device of this type, the parts of whose centrally scpa rabletop portion can be caused to move away from one another by a pull uponone end of the table and whose supplemental leaf can be moved intoposition by the operator Without moving from his position at the end ofthe table.

In the drawings :-Figure 1, is a plan view of the table with the topfinishing boards removed. Fig. 2, is a plan with the separable parts ofthe table moved away from one another and with the supplemental leafshown in dotted lines in position between them. Figs. 3 and 41 aredetails of the lever and longitudinal connections between the tableframe and the lazy tongs arm pieces by which the parts of the table areforced apart. Fig. 5, is a sectional elevation crosswise of the tableshowing the mechanism for hoisting the supplemental leaf into position.Fig. 6, is a lengthwise elevation, partly in section along the lines 66of Fig. 1. Fig. 7, is a sectional end elevation of the locking mechanismfor the supplemental parts of the table. Fig. 8, is a perspectiveshowing the cut-away locking latch in which the nose of the catch pieceengages. Fig. 9, is an elevation, partly in section, of the supplementalleaf in fully raised position, the fully lower position being shown inFig. 5. Fig. 10, is an enlarged plan of the central part of the tableshowing the projecting levers or arms.

1 and 2 represent the separable parts of a table which may be supportedin any desired way, and which, when in fully closed position as shown inFig. 1, form a complete circle for the table top. They are separablyslidable along the parallel ways 3, 4; and 5, and 3*, 4* and 5, so thatat all times the diametrical lines or edges of separation between theparts when they are closed, are maintained parallel.

Linked to the outer or rounded edge of the table and to the under facethereof are the link members (i and 7 which are pivotally connectedrespectively to the centrally pivoted lever arms 8 and 9, whose endportion not attached to either of the parts (3 or 7 are similarlyattached to levers 6 and 7 which are pivotally attached to the roundedperipheral portion of the other part of the table. These lever armsbeing pivoted at '10 produce a lazy tongs effect, as regards theirprojecting influence, when either end of the table is pulled, upon theopposite set of levers and consequently the other section of the table;that is, whatever opening effect is produced on the half of the tablelocated between the pivot point 10 and the operator by the pull on thatside or edge is, through the medium of the lazy tongs arms which extendon the far side of the pivot point 10, communicated thereto, to projectthat section of the table correspondingly to the degree of openingeffected on the operators side by the pull toward him and away from thepivot point.

A pull upon one end of the table is sufficient, not only to draw thatsection of the table toward the operator, but as well to cause theprojection to an equal degree in the opposite direction of the othersection of the table through the medium of the lazy tongs levers andlinks.

When the table is pulled open to the desired degree, that hand of theoperator not engaged in actuating the table, may reach to one side orthe other to turn the drop end 11 of the supplemental leaf 12 using thecurved edge 13 as a pivotal center, the end portion 11 being pivotallysupported, as by the link 14, one end of which is shown connected to asmall bracket piece on the under side of the end portion 11, with onelateral edge adapted to lie adjacent to the adjacent end of thesupplemental leaf 12, so as to swing about it as a center as it (thedrop end 11) is raised or lowered. To this drop end 11 is pivotallyattached a link 14, which connects at 15 to the rock lever 16, pivotedon a bracket 17, which rises from the under frame of the table. The end18 of the rock lever carries a roller 18 which, when the link 14 and thelever 16 are actuated as described, forces upwardly the supplemental Iis attached to the swinging edge of the drop piece 11, its movement iscommunicated to the centrally pivoted lever 38 and thence to the link 39so that the oppositely located drop piece 11 is actuated at the sametime.

The finishing edge or apron piece 20 at each end of the supplementalleaf as thus raised, registers with the apron 21 on the main table partand thus presents the appearance of a completed or finished table. Whenthe supplemental leaf is no longer de sired, the swing of the endportion 11 to its original position causes the end 18 of the rock lever16 to drop and consequently lowers the supplemental leaf 12 to itsposition of non-use into which position it is exactly guided by the pins22. The supplemental leaf 12 is shorter than the diameter of the maintable and is easily included within the frame of the main table.

To prevent the unintended separation of the table parts when the use ofthe table in its round form is desired, there is provided a latch piece23 which extends radially toward the peripheral edge from the center. Inone of the several holes 24 provided in the piece 23, engages the nose25 of the latching hook 25, which is connected by means of the link 26with the finger lever 27 at the end of the table. When this is actuatedit lifts the nose 25 from that one of the holes 24 in which it thenengages and with- WVhat I claim is 1. An extensible table, having, incombina tion with a pair of separable base members, a series of link andlever members pivotally supported upon one of said base members, asupplemental leaf lying loosely upon the depressed free ends of saidlever members in a normal position of non-use beneath the top surface ofthe table, a finishing portion pivotally supported adjacent one end ofsaid supplemental leaf in position to swing thereabout as a center andto which the other ends of said lever members from those whereon saidsupplemental leaf rests are attached, said supplemental leaf beingadapted to be vertically projected through the space between theseparated base members by the movement of said levers under theactuation of the swing of said finishing portion to its extendedposition,..substantially as described.

2. In an extensible table, in combination with a base composed of aplurality of separable parts, a series of slide members attached neartheir ends to one or the other of said parts, whereby their desiredrelative position is maintained when the parts are drawn away from oneanother, a plurality of angled lever members pivotally supported by oneof said separable base parts, a supplemental leaf normally locatedbeneath the plane of the table top and resting loosely on the free endsof said pivoted levers, a finishing portion pivotally supported with oneedge adjacent an end of said supplemental leaf and adapted to swingthereabout as a center and link members connecting one end of each ofsaid levers with said finishing portion, whereby, upon the swing thereofabout its hinged edge, the levers are actuated and the supplemental leafis vertically hoisted from its position of non-use through the spacebetween the separated parts of the table into the plane of the topportions thereof, substantially as described.

In testimony whereof, I sign this specification in the presence of twowitnesses.

BYRON H. CARNOVSKY.

Witnesses:

VIRGINIA C. SPRATT, IVILLIAM M. SWAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

